基于CFD的直動式純水溢流閥性能研究.pdf

1、西安科技大學碩士學位論文基于CFD的直動式純水溢流閥性能研究姓名：黃楠申請學位級別：碩士專業(yè)：機械設計及理論指導教師：柴光遠20080415SubjectThePureWaterReliefValveFunctionValveBasingOilCFDSpecialty：MechanicalDesignandTheoryName：HuangNanInstructor：ChaiGuangyuanABSTRACT(signatu(signat

2、uWaterhydraulichasagrowingtechnologyareamainlyduetoenvironmental，safetyandcleannessWaterhydraulicsystemshaveprovedtothebesttechnologyalternativeinsomeindustrialsectorssuchasfood，papersteelandpowerindustryWiththedevelopme

3、ntofmaterialscienceandmodemtechnologyWaterhydraulicshavebeenanewstudypointinandabroadHoweverduetolowviscidityhighvaporizationpressureanderosionofwatermedium，waterhydraulicreliefvalvefacetechnicaldifficultiessuchaserosion

4、，cavitationfailureandSOonAlongwithhydraulicsystemsdevelopingwithhighspeed，highpressureandmicrosystems，especiallydevelopmentofwaterhydraulics，cavitationismoreandmoreoutstandingDesigningthepurewaterreliefvalveissummarizedb

5、asingonoilvalveinthepaperBesides，thewayofdesigningofwaterreliefvalvehasbeendistinguishedfromthetraditionaloneonthebasisofthespecialpropertiesofpurewaterAsoneofthekeycomponentsofwaterhydraulicsystem，waterreliefvalveplaysa

6、llimportantroleinwaterhydraulicsystemThispaperhascardedoutanalysisonStaticanddynamicpropertyofwaterreliefvalveandhasbuiltpurewaterfloodingvalvedynamicbehaviourmathematicmodelApplyingcommercialsimulationsoftwareMatlabands

7、imulink，thedynamiccharacteristicsofwaterreliefvalvewasnumericallyinvestigatedWithdifferentmainparametersAtlast，numericalsimulationandvisualizingresearchalemadeontheflowfieldinwaterhydraulicvalvesbyapplyingFluentinthepape

8、rThroughwaterpressurevalvemodelandtheimprovedmodel’SCFDsteadystatemodelandanalysis，thepressuredistribution，velocitydistribution，disorderlyflowenergydistribution，energydistributioncallbeobtainedBasingonit，theoptimizationb